A bending machine for processing iron handicrafts

Abstract

The application relates to the technical field of iron handicraft bending, and discloses a bending machine for iron handicraft processing, which comprises a base, a motor fixedly connected to the right end of the base, a bidirectional screw rod fixedly connected to the output end of the motor, moving blocks threadedly connected to the left and right sides of the outer portion of the bidirectional screw rod, a guide rod slidingly connected to the inner rear side of the moving block, a rotating disc rotatably connected to the top end of the moving block, a ratchet fixedly arranged in the rotating disc, and a reciprocating screw rod rotatably connected to the rotating disc. The rotating disc, the ratchet and other structures are used in cooperation, so that the hollow carbon steel pipe and the bending column can be simultaneously lubricated during bending, the surface of the hollow carbon steel pipe is prevented from being scratched, the bending quality is high, the quality of the iron handicraft made of the bending machine is high, and the economic efficiency is high.

Description

Technical Field

[0001] This invention relates to the field of iron craft bending technology, specifically a bending machine for processing iron crafts. Background Technology

[0002] Iron crafts refer to artworks or decorative items made from iron. With a long history and diverse forms, iron craftsmanship showcases the strength, malleability, and beauty of iron. The forms and styles of iron crafts are extremely varied, including wrought iron doors and windows, wrought iron railings, wrought iron lamps, wrought iron furniture, wrought iron ornaments, and more. These crafts are widely used in architecture, interior decoration, gardening, and art exhibitions. In the processing and production of iron crafts, a bending machine is generally used to bend hollow carbon steel pipes into the desired shape, thus creating works of art.

[0003] Existing iron craft bending machines are generally manual. They work by placing a hollow carbon steel pipe between two bending blocks, and by turning the handle, a turntable is rotated, which in turn causes the two bending blocks to bend the steel pipe to the user's desired angle.

[0004] However, in actual use, existing bending machines for processing iron handicrafts suffer from friction between the bending block and the hollow carbon steel pipe. If the user fails to apply lubricant to the hollow carbon steel pipe and the bending block in a timely manner, scratches will appear on the surface of the hollow carbon steel pipe, resulting in poor aesthetics and lower quality. Using scratched hollow carbon steel pipes to produce iron handicrafts leads to lower quality and lower economic efficiency. Therefore, those skilled in the art propose a bending machine for processing iron handicrafts to solve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a bending machine for processing iron handicrafts, which solves the problem that in existing technologies, hollow carbon steel pipes are not lubricated in time during bending, resulting in scratches on the outside and thus lower quality iron handicrafts.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a bending machine for processing iron handicrafts, comprising a base, a motor fixedly connected to the right end of the base, a bidirectional threaded rod fixedly connected to the output end of the motor, movable blocks threadedly connected to both the left and right sides of the bidirectional threaded rod, a guide rod slidably connected to the rear side of the movable block, a turntable rotatably connected to the top of the movable block, a pawl provided inside the turntable, a reciprocating threaded rod rotatably connected inside the turntable, and a fixed lower side of the reciprocating threaded rod. A ratchet is connected to the reciprocating threaded rod, and an extrusion plate is threadedly connected to the external thread of the reciprocating threaded rod. Slider blocks are fixedly connected to both sides of the extrusion plate. An installation block is rotatably connected to the external thread of the reciprocating threaded rod. A sliding groove is opened inside the installation block. A feed pipe is fixedly connected to the front end of the installation block. A discharge port is opened on the inner rear wall of the installation block. A bending column is fixedly connected to the rear side of the top of the turntable. A hollow carbon steel pipe is provided on the rear side of the installation block. A support mechanism is provided inside the hollow carbon steel pipe. A clamping mechanism is provided in the outer middle part of the support mechanism.

[0007] Preferably, the bottom end of the movable block is slidably connected to the top end of the base, both ends of the guide rod are fixedly connected to the inner wall of the base, and the rear end of the hollow carbon steel pipe is attached to the front end of the bent column.

[0008] Preferably, the rear end of the turntable is fixedly connected to a handle, the bottom end of the reciprocating threaded rod is rotatably connected to the top end of the moving block, the outside of the extrusion plate is slidably connected to the inside of the slide groove, the outside of the slider is slidably connected to the inside of the slide groove, and the outer periphery of the ratchet is engaged with the outside of the pawl.

[0009] Preferably, the support mechanism includes a blowing component and a fixing component. The blowing component is disposed inside the hollow carbon steel tube, and the fixing component is disposed outside the blowing component. The blowing component includes two air bladders, the outer sides of which are slidably connected to the left and right sides inside the hollow carbon steel tube, respectively. An air outlet pipe is fixedly connected to the lower side of the two air bladders at opposite ends, and a pull rope is fixedly connected to the inner wall of the two air bladders on the side closest to each other.

[0010] Preferably, the fixing component includes two rubber plugs and two locking blocks. The lower sides of the adjacent ends of the two rubber plugs are respectively fixedly connected to the opposite ends of the air outlet pipe. The lower sides of the adjacent ends of the two locking blocks are respectively fixedly connected to the opposite ends of the pull rope. A sleeve is slidably connected inside the rubber plug.

[0011] Preferably, hot fine sand is placed between the airbag and the rubber stopper, the middle part of the two airbags at opposite ends is fixedly connected to the adjacent ends of the two sleeves, and the outside of the pull rope is slidably connected to the inside of the airbag near the sleeve.

[0012] Preferably, the adjacent sides of the rubber stopper are respectively interference-fitted with the interior of both ends of the hollow carbon steel tube, and the locking block is connected to the exterior of the moving block by bolts.

[0013] Preferably, the clamping mechanism includes a pushing component and a clamping component. The pushing component is fixedly connected to the top of the base, and the clamping component is disposed at the top of the pushing component. The pushing component includes a mounting block. The bottom end of the mounting block is fixedly connected to the middle of the top of the base. An electric telescopic rod is fixedly connected inside the top of the mounting block, and a push plate is fixedly connected to the output end of the electric telescopic rod.

[0014] Preferably, the clamping assembly includes two connecting blocks, with one side of each connecting block fixedly connected to the left and right ends of the push plate, and a first clamping block slidably connected to the front outer side of each connecting block, and a second clamping block slidably connected to the rear outer side of each connecting block.

[0015] Preferably, the bottom end of the first clamping block is rotatably connected to the rear side of the top end of the mounting block, the rear end of the second clamping block is fixedly connected to the rear side of the top end of the mounting block, the front end of the second clamping block is in contact with the outside of the hollow carbon steel pipe, and the rear end of the first clamping block is in contact with the inside of the hollow carbon steel pipe.

[0016] Working principle: When bending a hollow carbon steel pipe, the pipe is placed between the electric telescopic rod and the second and first clamping blocks. Activating the electric telescopic rod moves the push plate upwards, which in turn moves the two connecting blocks upwards. This causes the connecting blocks to move the corresponding first clamping block backwards, clamping the hollow carbon steel pipe without manual support, making it more convenient for the user. Then, an airbag is slid into the hollow carbon steel pipe, filling it with hot fine sand. A rubber stopper is then inserted to prevent the hot sand from spilling out. The clamping block is then bolted to the outside of the moving block. Turning the handle rotates the turntable, allowing the pipe to be pulled. The rope moves outward, squeezing the air bladder. This air bladder then blows air into the fine sand through the air outlet, resulting in a more even distribution of hot sand in the hollow carbon steel pipe. This ensures more uniform heating of the hollow carbon steel pipe, preventing it from easily deforming and resulting in higher bending quality. The hollow carbon steel pipe can then be bent, and the ratchet drives the pawl to rotate, which in turn drives the reciprocating threaded rod. This reciprocating threaded rod moves the extrusion plate upward, pushing the lubricating oil inside the chute through the discharge port to the outside, thus lubricating the hollow carbon steel pipe and preventing scratches on its surface. This high bending quality leads to higher quality iron crafts made from it, making it more economical.

[0017] This invention provides a bending machine for processing iron handicrafts. It has the following beneficial effects:

[0018] 1. This invention utilizes the coordinated use of structures such as a turntable, ratchet, pawl, reciprocating threaded rod, slide, slider, and mounting block to simultaneously lubricate the hollow carbon steel pipe and the bending column during bending. This prevents scratches on the surface of the hollow carbon steel pipe, resulting in higher bending quality. Consequently, the iron handicrafts made from this invention are of higher quality and more economical.

[0019] This invention utilizes a combination of structures such as an airbag, a pull rope, a sleeve, an air outlet pipe, a rubber plug, and a locking block to add heated fine sand to the inside of a hollow carbon steel pipe. This supports the internal structure of the hollow carbon steel pipe, and during bending, the fine sand inside is blown around, resulting in more uniform heating of the hollow carbon steel pipe. This prevents the hollow carbon steel pipe from easily deforming, resulting in higher bending quality and reduced bending costs.

[0020] This invention utilizes the coordinated use of structures such as an electric telescopic rod, a push plate, a connecting block, a first clamping block, and a second clamping block to conveniently clamp hollow carbon steel pipes. This eliminates the need for users to manually support the hollow carbon steel pipes, allowing for easy bending and improving bending efficiency. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the ratchet structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the pawl structure of the present invention;

[0024] Figure 4 This is a schematic diagram of the reciprocating threaded rod structure of the present invention;

[0025] Figure 5 This is a schematic diagram of the turntable structure of the present invention;

[0026] Figure 6 This is a schematic diagram of the airbag structure of the present invention;

[0027] Figure 7 This is a schematic diagram of the rope structure of the present invention;

[0028] Figure 8 This is a schematic diagram of the clamping mechanism of the present invention;

[0029] Figure 9 for Figure 8 Enlarged view of point A in the middle.

[0030] The components are as follows: 1. Base; 2. Motor; 3. Bidirectional threaded rod; 4. Moving block; 5. Guide rod; 6. Turntable; 7. Reciprocating threaded rod; 8. Extrusion plate; 9. Slider; 10. Mounting block; 11. Slide groove; 12. Discharge port; 13. Feed pipe; 14. Pawl; 15. Ratchet; 16. Bending column; 17. Handle; 18. Hollow carbon steel pipe; 19. Support mechanism; 1901. Airbag; 1902. Pull rope; 1903. Sleeve; 1904. Air outlet pipe; 1905. Rubber plug; 1906. Locking block; 20. Clamping mechanism; 2001. Mounting block; 2002. Electric telescopic rod; 2003. Push plate; 2004. Connecting block; 2005. First clamping block; 2006. Second clamping block. Detailed Implementation

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example:

[0033] Please see the appendix Figure 1 -Appendix Figure 4 This invention provides a bending machine for processing iron handicrafts, including a base 1. A motor 2 is fixedly connected to the right end of the base 1. A bidirectional threaded rod 3 is fixedly connected to the output end of the motor 2. Moving blocks 4 are threadedly connected to both the left and right sides of the bidirectional threaded rod 3. A guide rod 5 is slidably connected to the rear side of the inner side of the moving blocks 4. A turntable 6 is rotatably connected to the top of the moving blocks 4. A pawl 14 is provided inside the turntable 6. A reciprocating threaded rod 7 is rotatably connected inside the turntable 6. A ratchet 15 is fixedly connected to the lower outer side of the reciprocating threaded rod 7. An extrusion plate 8 is connected to the external thread. Slider 9 is fixedly connected to both sides of the extrusion plate 8. An installation block 10 is rotatably connected to the reciprocating threaded rod 7. A sliding groove 11 is opened inside the installation block 10. A feed pipe 13 is fixedly connected to the front end of the installation block 10. A discharge port 12 is opened on the inner rear wall of the installation block 10. A bending column 16 is fixedly connected to the rear side of the top of the turntable 6. A hollow carbon steel pipe 18 is provided on the rear side of the installation block 10. A support mechanism 19 is provided inside the hollow carbon steel pipe 18. A clamping mechanism 20 is provided in the outer middle part of the support mechanism 19.

[0034] Specifically, when bending the hollow carbon steel pipe 18, the turntable 6 and pawl 14 can drive the ratchet 15 to rotate, which in turn drives the reciprocating threaded rod 7 to rotate. This causes the reciprocating threaded rod 7 to move the extrusion plate 8 upwards from the lower dead center, thereby discharging the lubricating oil inside the chute 11 through the discharge port 12, thus lubricating the hollow carbon steel pipe 18. When it is necessary to add lubricating oil inside the chute 11, the reciprocating threaded rod 7 is continuously rotated to allow the extrusion plate 8 to move upwards from the lower dead center. When the sheet 8 moves to the upper stop point, it can continue to move downwards, thereby allowing the extrusion sheet 8 to move to the lower stop point. At this time, lubricating oil can be added to the inside of the chute 11 through the feed pipe 13. The mounting block 10 has a groove on its outside, so that the bent part of the hollow carbon steel pipe 18 can be placed more stably. The turntables 6 on the left and right sides are symmetrically arranged, so that the bending column 16 can bend both ends of the hollow carbon steel pipe 18 at the same time, or bend only one end, making the bending machine highly flexible in use.

[0035] Please see the appendix Figure 1 -Appendix Figure 2The bottom end of the movable block 4 is slidably connected to the top end of the base 1, and both ends of the guide rod 5 are fixedly connected to the inner wall of the base 1. The rear end of the hollow carbon steel pipe 18 is attached to the front end of the bent column 16.

[0036] Specifically, when it is necessary to control the bending distance, the motor 2 is started, which drives the bidirectional threaded rod 3 to rotate, thereby driving the two moving blocks 4 to move towards one side or away from the other. The moving blocks 4 can slide outside the guide rod 5, so that the moving blocks 4 can slide smoothly without tilting. At this time, bending is performed, so that both ends of the hollow carbon steel pipe 18 are bent on the horizontal plane, and the hollow carbon steel pipe 18 has more options for bending, thus making the bending machine more flexible in use.

[0037] Please see the appendix Figure 1 -Appendix Figure 3 The rear end of the turntable 6 is fixedly connected to a handle 17. The bottom end of the reciprocating threaded rod 7 is rotatably connected to the top end of the moving block 4. The outside of the extrusion plate 8 is slidably connected to the inside of the slide groove 11. The outside of the slider 9 is slidably connected to the inside of the slide groove 11. The outer periphery of the ratchet 15 is engaged with the outside of the pawl 14.

[0038] Specifically, when bending is required, the handle 17 is pulled to make the turntable 6 rotate more conveniently, thus saving the user effort. The ratchet 15 and pawl 14 ensure that the reciprocating threaded rod 7 can only rotate in one direction, thereby driving the extrusion plate 8 to move up and down. The slide groove 11 limits the slider 9. Through the cooperation of the slide groove 11 and the slider 9, the extrusion plate 8 moves upward smoothly, thus preventing the extrusion plate 8 from deviating during movement. The turntable 6 and the moving block 4 limit the internal reciprocating threaded rod 7, thus allowing the reciprocating threaded rod 7 to rotate smoothly.

[0039] Please see the appendix Figure 5 -Appendix Figure 7 The support mechanism 19 includes a blowing component and a fixing component. The blowing component is located inside the hollow carbon steel tube 18, and the fixing component is located outside the blowing component. The blowing component includes two airbags 1901. The outside of the two airbags 1901 is slidably connected to the left and right sides inside the hollow carbon steel tube 18, respectively. An air outlet pipe 1904 is fixedly connected to the lower side of the opposite end of each of the two airbags 1901. A pull rope 1902 is fixedly connected to the side of the inner wall of each of the two airbags 1901 that is close to each other.

[0040] Specifically, when it is necessary to blow away the hot fine sand inside the hollow carbon steel pipe 18, by pulling the rope 1902, the two airbags 1901 that are close to each other can be moved to the opposite side. This allows the gas inside the airbags 1901 to enter the interior of the hollow carbon steel pipe 18 through the air outlet pipe 1904, thereby blowing away the hot fine sand inside the hollow carbon steel pipe 18. This ensures that the hot fine sand is evenly distributed inside the hollow carbon steel pipe 18, resulting in more uniform heating at the bends of the hollow carbon steel pipe 18. Consequently, the hollow carbon steel pipe 18 will not easily deform during bending, thus ensuring a higher quality of bending of the hollow carbon steel pipe 18.

[0041] Please see the appendix Figure 5 -Appendix Figure 7 The fixing assembly includes two rubber plugs 1905 and two locking blocks 1906. The lower sides of the adjacent ends of the two rubber plugs 1905 are respectively fixedly connected to the opposite ends of the air outlet pipe 1904. The lower sides of the adjacent ends of the two locking blocks 1906 are respectively fixedly connected to the opposite ends of the pull rope 1902. A sleeve 1903 is slidably connected inside the rubber plugs 1905.

[0042] Specifically, the sleeve 1903 is harder than the hollow carbon steel tube 18, allowing the airbag 1901 to be easily pushed into the interior of the hollow carbon steel tube 18. The sleeve 1903 can be bent along with the hollow carbon steel tube 18, and after being bent, it can be pulled out directly from the interior of the hollow carbon steel tube 18, gradually straightening during the extraction process. This allows for repeated use after adjustment, thus reducing operating costs. The rubber stopper 1905, after being connected to the hollow carbon steel tube 18, has a small cavity inside to allow air to pass through the interior of the hollow carbon steel tube 18, enabling the gas inside the airbag 1901 to easily enter the interior of the hollow carbon steel tube 18.

[0043] Please see the appendix Figure 5 -Appendix Figure 7 Hot fine sand is placed between the airbag 1901 and the rubber stopper 1905. The middle part of the two airbags 1901 at opposite ends is fixedly connected to the adjacent ends of the two sleeves 1903. The outside of the pull rope 1902 is slidably connected to the inside of the airbag 1901 near the sleeve 1903.

[0044] Specifically, the hot fine sand is heated on the outside and placed inside the hollow carbon steel pipe 18. This not only supports the bends of the hollow carbon steel pipe 18, but also heats the hollow carbon steel pipe 18, preventing it from deforming during bending.

[0045] Please see the appendix Figure 5 -Appendix Figure 6The rubber stopper 1905 is press-fitted to the inner ends of the hollow carbon steel tube 18 on one side, and the locking block 1906 is connected to the outside of the moving block 4 by bolts.

[0046] Specifically, this design allows the hollow carbon steel pipe 18 to be easily connected to the rubber stopper 1905. Furthermore, since the locking block 1906 is connected to the moving block 4, when the turntable 6 rotates, it can automatically drive the pull rope 1902 to move outward, allowing it to easily pull the airbag 1901 to blow air. This enables the bending, lubrication, and support to work together, making the bending machine more convenient to use and improving its practicality.

[0047] Please see the appendix Figure 1 and attached Figure 8 -Appendix Figure 9 The clamping mechanism 20 includes a pushing component and a clamping component. The pushing component is fixedly connected to the top of the base 1, and the clamping component is disposed on the top of the pushing component. The pushing component includes a mounting block 2001. The bottom end of the mounting block 2001 is fixedly connected to the middle of the top of the base 1. An electric telescopic rod 2002 is fixedly connected inside the top of the mounting block 2001. A push plate 2003 is fixedly connected to the output end of the electric telescopic rod 2002.

[0048] Specifically, when it is necessary to clamp the hollow carbon steel pipe 18, the pushing component is activated, which drives the clamping component to move, thereby clamping the hollow carbon steel pipe 18. The bending angle can be adjusted by manually rotating the hollow carbon steel pipe 18, which makes it convenient to manufacture more complex bending parts. This makes the device widely applicable and does not require manual support from the user, making it convenient to use.

[0049] Please see the appendix Figure 1 and attached Figure 8 -Appendix Figure 9 The clamping assembly includes two connecting blocks 2004. The adjacent sides of the two connecting blocks 2004 are fixedly connected to the left and right ends of the push plate 2003, respectively. A first clamping block 2005 is slidably connected to the front outer side of the connecting block 2004, and a second clamping block 2006 is slidably connected to the rear outer side of the connecting block 2004.

[0050] Specifically, the two connecting blocks 2004 are symmetrically distributed, which makes the force on the hollow carbon steel pipe 18 more uniform, thus making the hollow carbon steel pipe 18 more stable to be clamped. Furthermore, by sliding the connecting blocks 2004 inside the first clamping block 2005, the first clamping block 2005 can be controlled to clamp the hollow carbon steel pipe 18. When the first clamping block 2005 and the second clamping block 2006 are in contact, the hollow carbon steel pipe 18 can be stably clamped.

[0051] Please see the appendix Figure 1 and attached Figure 8 -Appendix Figure 9 The bottom end of the first clamping block 2005 is rotatably connected to the rear side of the top end of the mounting block 2001. The rear end of the second clamping block 2006 is fixedly connected to the rear side of the top end of the mounting block 2001. The front end of the second clamping block 2006 is in contact with the outside of the hollow carbon steel pipe 18. The rear end of the first clamping block 2005 is in contact with the inside of the hollow carbon steel pipe 18.

[0052] Specifically, the mounting block 2001 provides support and fixation for the first clamping block 2005 and the second clamping block 2006 at the top, so that when the first clamping block 2005 and the second clamping block 2006 are used together, the hollow carbon steel pipe 18 can be easily clamped, thereby freeing the user's hands and making the user more free to use.

[0053] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bending machine for processing iron handicrafts, comprising a base (1), characterized in that, A motor (2) is fixedly connected to the right end of the base (1). A bidirectional threaded rod (3) is fixedly connected to the output end of the motor (2). Moving blocks (4) are threadedly connected to both the left and right sides of the bidirectional threaded rod (3). A guide rod (5) is slidably connected to the rear side of the moving block (4). A turntable (6) is rotatably connected to the top of the moving block (4). A pawl (14) is provided inside the turntable (6). A reciprocating threaded rod (7) is rotatably connected inside the turntable (6). A ratchet (15) is fixedly connected to the lower side of the reciprocating threaded rod (7). An extrusion plate (8) is threadedly connected to the outside of the reciprocating threaded rod (7). Slider (9) is fixedly connected to both sides of the extrusion plate (8). An installation block (10) is rotatably connected to the outside of the reciprocating threaded rod (7). A sliding groove (11) is opened inside the installation block (10). A feed pipe (13) is fixedly connected to the front end of the installation block (10). A discharge port (12) is opened on the inner rear wall of the installation block (10). A bending column (16) is fixedly connected to the rear side of the top of the turntable (6). A hollow carbon steel pipe (18) is provided on the rear side of the installation block (10). A support mechanism (19) is provided inside the hollow carbon steel pipe (18). A clamping mechanism (20) is provided in the outer middle part of the support mechanism (19).

2. The bending machine for processing iron handicrafts according to claim 1, characterized in that, The bottom end of the moving block (4) is slidably connected to the top end of the base (1), both ends of the guide rod (5) are fixedly connected to the inner wall of the base (1), and the rear end of the hollow carbon steel pipe (18) is attached to the front end of the bent column (16).

3. A bending machine for processing iron handicrafts according to claim 1, characterized in that, The turntable (6) is fixedly connected to a handle (17) at its rear end. The bottom end of the reciprocating threaded rod (7) is rotatably connected to the top end of the moving block (4). The outside of the extrusion plate (8) is slidably connected to the inside of the slide groove (11). The outside of the slider (9) is slidably connected to the inside of the slide groove (11). The outer periphery of the ratchet (15) is engaged with the outside of the pawl (14).

4. A bending machine for processing iron handicrafts according to claim 1, characterized in that, The support mechanism (19) includes a blowing component and a fixing component. The blowing component is located inside the hollow carbon steel tube (18), and the fixing component is located outside the blowing component. The blowing component includes two air bladders (1901). The exterior of the two air bladders (1901) is slidably connected to the left and right sides of the interior of the hollow carbon steel tube (18). An air outlet pipe (1904) is fixedly connected to the lower side of the two air bladders (1901) at opposite ends. A pull rope (1902) is fixedly connected to the inner wall of the two air bladders (1901) at opposite sides.

5. A bending machine for processing iron handicrafts according to claim 4, characterized in that, The fixing assembly includes two rubber plugs (1905) and two locking blocks (1906). The lower sides of the adjacent ends of the two rubber plugs (1905) are respectively fixedly connected to the opposite ends of the air outlet pipe (1904). The opposite ends of the two locking blocks (1906) are fixedly connected to a pull rope (1902). A sleeve (1903) is slidably connected inside the rubber plug (1905).

6. A bending machine for processing iron handicrafts according to claim 5, characterized in that, Hot fine sand is placed between the airbag (1901) and the rubber stopper (1905). The middle part of the two airbags (1901) at opposite ends is fixedly connected to the adjacent ends of the two sleeves (1903). The outside of the pull rope (1902) is slidably connected to the inside of the airbag (1901) near the sleeve (1903).

7. A bending machine for processing iron handicrafts according to claim 5, characterized in that, The rubber stopper (1905) is respectively press-fitted to the inner ends of the hollow carbon steel pipe (18) on one side, and the locking block (1906) is connected to the outside of the moving block (4) by bolts.

8. A bending machine for processing iron handicrafts according to claim 1, characterized in that, The clamping mechanism (20) includes a pushing component and a clamping component. The pushing component is fixedly connected to the top of the base (1), and the clamping component is disposed at the top of the pushing component. The pushing component includes a mounting block (2001). The bottom end of the mounting block (2001) is fixedly connected to the middle of the top of the base (1). An electric telescopic rod (2002) is fixedly connected inside the top of the mounting block (2001), and a push plate (2003) is fixedly connected to the output end of the electric telescopic rod (2002).

9. A bending machine for processing iron handicrafts according to claim 8, characterized in that, The clamping assembly includes two connecting blocks (2004), with one side of each connecting block (2004) fixedly connected to the left and right ends of the push plate (2003). A first clamping block (2005) is slidably connected to the front outer side of each connecting block (2004), and a second clamping block (2006) is slidably connected to the rear outer side of each connecting block (2004).

10. A bending machine for processing iron handicrafts according to claim 9, characterized in that, The bottom end of the first clamping block (2005) is rotatably connected to the rear side of the top end of the mounting block (2001), the rear end of the second clamping block (2006) is fixedly connected to the rear side of the top end of the mounting block (2001), the front end of the second clamping block (2006) is in contact with the outside of the hollow carbon steel pipe (18), and the rear end of the first clamping block (2005) is in contact with the inside of the hollow carbon steel pipe (18).

Images